Списък с публикации

статии (19)

  1. Angelova I. A new approach for constructing second order schemes for fractional order differential equations.// AIP Conference Proceedings: AMEE’21, 2022, No 2505(1), pp. 050002-1-050002-8, ISBN 978-0-7354-4396-9
  2. Ivanka Angelova. FOURTH-ORDER DIFFERENCE SCHEMES FOR TWO POINTS BOUNDARY VALUE PROBLEM OF A FOURTH ORDER DEGENERATE DIFFERENTIAL EQUATION.// Proceedings of the Union of Scientists—Ruse, 2018, No 5, pp. 7-13, ISBN 1314-3077
  3. Angelova I. HIGH-ORDER DIFFERENCE SCHEMES BASED ON INTEGRAL IDENTITIES FOR SYSTEMS OF WEAKLY COUPLED ORDINARY DIFFERENTIAL EQUATIONS.// Proceedings of the Union of Scientists—Ruse, 2017, No 14, pp. 9-18, ISBN 1314-3077
  4. Ivanka Angelova, Lubin Vulkov. Two-grid algorithms for singularly perturbed reaction-diffusion problems on layer adapted meshes.// arXiv:1604.05201, 2016, No v1
  5. Angelova I., L. Vulkov. O(h2,h4,...) approximations of a singular Sturm-Liouvile equation.// AIP CP, 2012, No 1497, pp. 160-167
  6. Angelova, I. Mathematical Models of Interface Problems for Steady-Unsteady Heat Conduction.// Proceedings of the Union of Scientists – Ruse, Book 5, “Mathematics, Informatics and Physics”, 2011, No 8, pp. 38-43
  7. Angelova, I. Numerical Solution of the Two-Phase Stefan Problem for Sphere.// Proceedings of the Union of Scientists – Ruse, Book 5, “Mathematics, Informatics and Physics”, 2011, No 8, pp. 31-37
  8. Angelova I., L. Vulkov. A Two-Grid Method on Layer-Adapted Meshes for a Semilinear 2D Reaction-Diffusion Problem.// LNCS, 2010, No 5910, pp. 703-710, ISBN 978-3-642-12535-5 (SJR rank: 0.322 /2010, )
  9. Angelova I., M.N. Koleva. Finite element solution of 2D and 3D elliptic problems with intersected interfaces.// American Institute of Physics CP, 2009, No 1186, pp. 311-318, ISBN 978-0-7354-0752-7 (SJR rank: 0.163 /2009, SJR SCImago Journal and Country Rank)
  10. Angelova, I. Error estimates of high-order difference schemes for elliptic equations whit intersecting interfaces.// Ann. Sofia Univ., Fac. Math. And Inf., 2009, No 99, pp. 85-109
  11. Angelova I., L. Vulkov. Uniformly Convergent of Finite-Difference Schemes for Raction-Dffusion Interface Problems.// LNCS, 2008, No 4818, pp. 654-660, ISBN 978-3-540-78827-0 (SJR rank: 0.322 /2008, )
  12. Angelova, I.Tr., L.G. Vulkov. High-order finite difference schemes for elliptic problems with intersecting interfaces.// Applied Mathematics and Computation, 2007, No 187, pp. 824-843 (Impact factor: 4.397 /, https://www.sciencedirect.com/journal/applied-mathematics-and-computation/vol/187/issue/2)
  13. Angelova I., L. Vulkov. Marchuk identity-type second order difference schemes of 2-D and 3-D elliptic problems with intersected interfaces.// Krag. J. Math., 2007, No 30, pp. 277-292, ISBN 1450-9628
  14. Angelova, I.T., L.G. Vulkov. High-order difference schemes based on new Marchuk integral identities for one-dimensional interface problems.// Journal of Numerical Mathematics, 2005, No 13, pp. 1-18, ISBN 1569-3953 (Impact factor: 4.036 /, https://www.degruyter.com/journal/key/JNMA/html)
  15. Angelova, I. High-order difference schemes for convection-diffusion interface problems.// Math. Mod. and Anal., 2005, No 10, pp. 319-334, ISBN 13926292 (SJR rank: 0.491 /, https://www.scopus.com/sourceid/100147323?origin=recordpage)
  16. Angelova, I.Tr., L.G. Vulkov. Singularly perturbed differential equations with discontinuous coefficients and concentrated factors.// Applied Mathematics and Computation, 2004, No 158, pp. 683-701, ISBN 00963003 (Impact factor: 4.397 /, https://www.sciencedirect.com/journal/applied-mathematics-and-computation/vol/158/issue/3)
  17. Dimitrova, I. Conservation Laws and Symmetric Forms of the Shallow Water Model Equation.// J. of Theor. and Appl. Mech., 2002, No 1, pp. 21-33
  18. Dimitrova I., L. Vulkov. High order ε-uniform methods for singularly perturbed reaction-diffusion problems with discontinuous coefficients and singular sources.// FILOMAT, 2001, No 10, pp. 247-256
  19. Dimitrova, I. Conservation Laws and Symmetrization of the Incompressible Inviscid Fluid Flow Equations in the Boussinesq Approximation.// Proceedings of the Union of Scientists – Rousse, Ser. “Mathematics, Informatics and Physics”, 2001, No 1, pp. 46-51

доклади (7)

  1. Ivanka Tr. Angelova, Lubin G. Vulkov. Analysis of Numerical Approximations to Degenerate Differential Equations. IN: NMSCAA’16, Sofia, SIAM, 2016, pp. 3-6
  2. I. Angelova, L. Vulkov. High-Order Numerical Methods for Singular Problems 1 Weakly Degeneration. IN: BGSIAM’11, Sofia, 2012, pp. 3-8, ISBN 1313-3357
  3. Angelova I., L. Vulkov. Comparison of the Two-grid Method on Different Meshes for Singularly Perturbed Semilinear Problems. IN: Appl. of Math. in Engin. and Econ.’34, American Institute of Physics, CP Series1067, 2008, pp. 305-312, ISBN 0094243X
  4. Brayanov I., I. Dimitrova. Uniformly convergent High-Order Schemes for a Two Dimensional Elliptic Reaction-Diffusion Problem with Anisotropic Coefficients. IN: LNCS 2542, NMA 2002, Springer, 2003, pp. 395-402, ISBN 978-3-540-36487-0
  5. Dimitrova I., L. Vulkov. On the Numerical Solution of Singularly Perturbed Interface Problems. IN: Appl. of Math. in Engin. and Econ.’27, Sofia, Heron Press, 2002, pp. 249-257
  6. Dimitrova, I. New Marchuk Type Integral Identities for Interface Problems in One Dimension. IN: Proceedings of the University of Rousse, Book 2.2, Vol.39, Rousse, 2002, pp. 111-116
  7. Dimitrova, I. Numerical Algorithm of a Turbulent Viscosity Model Nonlinear Equation. IN: Appl. of Math. in Engin. and Econ.’26, Sofia, Heron Press, 2001, pp. 241-243

учебни пособия (2)

  1. Терзиян С., М. Колева, Ю. Чапарова, И. Ангелова, А. Михова, Н. Димитров. WEB базиран курс за дистанционно обучение по Математичен анализ II за студенти от специалност Компютърни науки. Русе, -, 2013, ISBN -
  2. Терзиян С., М. Колева, Ю. Чапарова, И. Ангелова, А. Михова, Н. Димитров. WEB базиран курс за дистанционно обучение по Висша математика II за студенти от специалност Земеделска техника и технологии. Русе, -, 2013, ISBN -

учебници (2)

  1. Терзиян С., М.Колева, Ю.Чапарова, И. Ангелова. Лекции по Висша математика II. Русе, Печатна База при Русенски Университет, 2011, ISBN 978-954-712-513-1
  2. Ангелова И., М. Колева. Висша математика II. Комплексни функции. Операционно смятане. РУ „Ангел Кънчев”, Печетна база на РУ, 2011, стр. 104, ISBN 978-954-712-540-7

книги (1)

  1. Ангелова И., Л. Вълков. Диференчни схеми за задачи с гранични слоеве. Русенския университет, Издателски център на РУ, 2011, стр. 126, ISBN 978-954-712-525-4